<template>
  <div class="login_containter">
    <!-- 登录块11 -->
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        class="login_form"
        label-width="0"
        :rules="loginrules"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-denglu"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="iconfont icon-mima"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
import store from "@/store";
export default {
  created() {
    window.sessionStorage.setItem(
      "role",
      window.sessionStorage.getItem("role")
        ? window.sessionStorage.getItem("role")
        : null
    );
    let token = window.localStorage.getItem("token");
    //如果有token，向后台发起验证，返回是否验证成功
    if (token) {
      this.$http.get("valid", { params: { token: token } }).then((res) => {
        if (res.data.code == 200) {
          this.loginForm.username =  res.data.data.username
        }
      });
    }
  },
  data() {
    return {
      //表单数据
      loginForm: {
        username: "",
        password: "",
      },
      dialogRegisterFormVisible: false,
      form: {
        name: "",
        password: "",
        email: "",
        role: "",
        state: 1,
      },
      formLabelWidth: "120px",

      //   验证对象
      loginrules: {
        //   校验规则
        username: [
          { required: true, message: "用户名为必选项", trigger: "blur" }, //必选项
          {
            min: 3,
            max: 12,
            message: "长度在 3 到 12 个字符",
            trigger: "blur",
          }, //长度验证
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" }, //必选项
          {
            min: 5,
            max: 20,
            message: "长度在 5 到 20 个字符",
            trigger: "blur",
          }, //长度验证
        ],
      },
    };
  },
  methods: {
    //重置表单内容
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    //处理登录
    login() {
      //1.验证校验规则
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return; //验证失败
        window.localStorage.setItem(
        "token",
        window.localStorage.getItem("token")
        ? window.localStorage.getItem("token")
        : null
        )
        const { data: res } = await this.$http.post("login", this.loginForm); //访问后台
        if (res.flag == "ok") {
          // this.$store.commit('setToken',res.token)
          window.localStorage.setItem("token", res.token);
          window.sessionStorage.setItem("user", res.user); //存储user对象
          window.sessionStorage.setItem("role", res.role);
          this.$message.success("操作成功"); //信息提示
          this.$router.push({ path: "/home" }); //页面路由跳转
        } else {
          this.$message.error("不存在该管理员或密码错误"); //错误提示
        }
      });
    },
  },
};
</script>
<style lang="less">
// 根节点样式
.login_containter {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  .avatar_box {
    width: 130px;
    height: 130px;
    border: 1px saddlebrown;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: aqua;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #fff;
    }
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login_form {
  position: absolute;
  bottom: 0%;
  width: 100%;
  padding: 0 10px;
  box-sizing: border-box;
}
</style>
